Power supply mounting insert



FIG. 1 is a perspective view of a power supply mounting insert showing our new design, the power supply mounting block and other inserts being shown in broken lines for illustrative purposes only;

FIG. 2 is an enlarged right side elevational view thereof;

FIG. 3 is an enlarged left side elevational view thereof;

FIG. 4 is an enlarged top plan view thereof;

FIG. 5 is an enlarged rear elevational view thereof;

FIG. 6 is an enlarged bottom plan view thereof; and

FIG. 7 is an enlarged front elevational view thereof. 

The ornamental design for a power supply mounting insert, as shown and described. 